Purchased from the gas company when renting a rental apartment in April 2023. Used for only 11 months until February 2024. Therefore, I think it's relatively clean. This Harman rubber tube socket was said to be easy to attach to the main valve and essential. The propane gas hose (Dunlop) is 90cm long. Two clips are included. For those who understand that this is a used item, thank you. #Harman #PLGas #PropaneGas #RubberPlug #RubberPlugSocket #Kachitto #GasHose